@Misc{ 
  DweSan18,
  author = { Dweik, Samer and Santambrogio, Filippo },
  title = { $L^p$ bounds for boundary-to-boundary transport densities, and $W^{1,p}$ bounds for the BV least gradient problem in 2D },
  journal = { Calculus of Variations and PDE's },
  year = { 2018 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/3792/ },
  note = { cvgmt preprint}
}